Halo CE Co-op Crashing Fix

I'm thinking this is an Coding Error Specific problem with Halo, So in short the main reason the game lags in co-op has to be they lag direct servers for the players in the campaign. since Hamachi fixes this error (allow you to setup a Virtual Private Network that will allow you to share data between the computers in your network in a sense creating a server for them). after you were to get Hamachi and set it up put your game to LAN and then Boom input lag fixed maybe a couple of jumps here and there. The next Issue halo has with coop seems to be AMD Specific but steam decks Nvidia GPU also struggles with it. whenever you go through a loading point in halo CE the game ( when new enemies spawn or new part of the map loads) Freezes the game this seems to happen only on the New Graphics of Halo CE. I'm not quite sure what causes this only thing that comes to my mind is that synchronizing two threads is hard as hell and someone with the coding of anniversary graphics they didn't do it correctly.

TLDR:

1. download Hamachi to make a private server
2. change the game network from Xbox Live to LAN
3. when you play Halo CE change it to old graphics

not sure if this is the case for halo 2 or not but if it is likely the same fix unless it's level specific.

this should be easy to fix with a AAA company like halo and is unforgivable that they just won't fix it.

hopefully this helps you i'm still learning about this myself so if you figure anything out comment and tell me more about it.